ROCKER, THROTTLE VALVE
Ventilation door description
Structurally, the slide is a metal pocket, inside which gradually moves rolled to size sheet, overlapping the connecting size. At the big sizes of a gate the sheet moves on directing corners, at the small sizes – inside a pocket. The dimensions of the control damper depend on the size of the air duct. It can be both round and rectangular in cross section.
Ventilation gates are used to cut off air duct branches from the general system. They usually work in “open / closed” modes. Incomplete opening and large size will create additional noise. When used in aspiration systems, it is made at an angle of 45 degrees to the overlapping highway.
Ventilation damper rectangular cross-section is a metal pocket, mounted on the recess of the rectangular cross-section corresponding to the cross-section of the channel in which the gate is installed, mounted on the cutting flanges of the tire and the sliding sheet itself.
Ventilation gate round section is a metal pocket, round inserts are installed on it corresponding to the cross section of the channel in which the gate is installed and the door leaf itself.
Ventilation gates are issued in two modifications differing in type of connection to the air duct:
- nipple damper
- flange sunroof
Dimensions of round vents
|Diameter D, mm||mounting size C, mm||Metal thickness t, mm||Gate weight, kg|